Flehmen response

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Flehmen response

[′flā·mən ri‚späns]
(ecology)
A courtship behavior displayed by the males of some mammalian species in which the upper lip is curled and the neck is extended, facilitating the reception of olfactory cues.
References in periodicals archive ?
This is called the flehmen reaction and is in response to the scent of a female's urine.